Phonograph.



PATENTED DEG. 17, 1907.

H. P. HOLMES. PHONOGRAPH.

APPLIOATION FILED JULY 7, 1905.

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, UNITED STATEb PATENT OFFICE.

HORACE F. HOLMES, OE CONCORD, NEW HAMrsHIRE PHONOGRAPH. Specification ot-Iietters Patent. Appiimionieaiuiy?.1905. smaila. 268.673.

NO- 873,860- Patented nec. i7, 1907.

To 'all whom 'it may concern: y cured a closed link 16, said link passing Be it known that I, HORACE F. HOLMES, a 1 through an eye or aperture 17 in the end of citizen of the United States, residing at Conthe reproducer lever. cord, in the county of Merrimack and State I have found from my experiments with a 0f New Hampshlle, have .lIlVeIlted'an Imconstructionsuch as above described that provement in lhonographs, ofwhich the folwhere a closed link or loop 16 is used to conlowing description, in connectlon with 'the nect the reproducer lever to the diaphragm accompanying drawing, is a specification, l instead of the open link or hook member hke letters on the drawings representing like l'eomnionly used, the sound produced has a parts: much smoother quality and is more distinct. This invention relates to phonograplis, and I Have found that by securing the attachespecially to the manner of connecting the ing member 12 to thediaphragm, as herein diaphragmto the reproducer or recorder leshown, a better result is attained than when ver, the object of theinvention being t0 piO- the head l1 is securely cemented to the un vide a novel connection between these parts dersde 0f the diaphragm. v which results in' increased smoothness and The closed link 16 may be made-in a vadlStlnOtDeSS 111 the Sound produced. l riety of ways, but preferably it is made by The novel features of my in venti'on will be i bending a Wire into loop-shape and fastenmore fully hereinafter described and then l ing the'ends thereof together, as at 18. It is pointed out'in the claims. not essential to my invention thatnthese ends Figure 1 is a central section through a rel should be fastened together, as if theproper producer embodying my invention; lug. 2 is A--niaterial is used the ends will stay in contact asection on an enlarged scale on the line :zzl with eac-,h other when the loop is bent to Fig. 1. shape without any securing means, the im- 3 designates the usual cylindrical frame of portant thing however is the closed loop as the reproducer which supports the diadistinguished from an open loop'. phragm 4, said frame having the intuined Having described my invention what I flange 5 on w -ch the diaphragm rests. The claim as new and desirev to secure by Letters diaphragm is held in place by the mouth- Patent is piece supporting-plate 6 which carries the 1. In aphonograph, the combination with usual mouth-piece 7, said plate being rel a frame, of a diaphragm within the frame, tained in position by the usual screw-threadmeans to clamp the diaphragm at its periphed sleeve 9. ery to the frame, a weighted clapper pivoted 10 designates the usual weighted clapper to the frame, a reproducer lever pivoted to pivoted to the frame 3, and to which is piv- .the clapper, an attaching plate 12 on the unoted the reproducer lever 11. der side of the diaphragm, saidy attaching The parts thus far described are such as plate having a screw-threaded stem extendare usually found in reproducers and form no ing through the diaphragm and a perforated part of my present invention, which relates stem 15, a nut on the screw-threaded stem solely to the manner of connecting the rei for clamping the attaching plate to the diaproducer lever to the diaphragm. l

reproducer lever and the perforatedstein 15, said loop being made from a single piece of l wire bent to the proper shape and having its endssecured together.

Instead of cementing a head or attaching member to the diaphragm, as is commonly done, I provide such a head oi' member 12 with a screw-threaded stem'13 which pro l jects through .the diaphragm 4, and on the i 2.' In a phonograph, a diaphragm, means upper end of which is secured a clamping-nut l to support the same, a pivoted reproducing 14. This attaching-plate 12 has aperforated lever, an attaching member on the understem 15 depending therefrom to which is sel side of the diaphragm, said attaching memphragm, and a closed loop 16 connecting the.

ber having a screw-threaded stem' extending i In testimony whereof; I have signed m through the diephrafrn,` a clamping-nut on l name to this specification, in the presence of 10 said stem above the iaphragm, and a closed l two subscribing Witnesses.

loop connecting said attaching member to f 5 the reproduoer-lever said loop being made l HORACE F HOLMES' from a, single piece of-Wire bent to the proper Witnesses: shape and having its ends overlapping and SIDNEY S. UPHAM,

secured together.' -1 ALBERT H. DALRYMPLE. 

